Skelos waved at reporters but declined comment as he left his Rockville Centre, LI, home Friday after kissing his wife, Gail.

Sources told The Post that US Attorney Preet Bharara, who brought charges against Silver and has vowed to clean up Albany, is looking at Skelos’ connections to various real-estate deals.

He serves as a counsel for the law firm Ruskin Moscou Faltischek in Uniondale, which specializes in ­real-estate litigation. In 2013, Skelos ­reported being paid between $150,000 and $250,000 by the firm, which did not respond to a request for comment.

“People over the years have raised the question, ‘What does Dean do for that firm?’ People are nervous,” an Albany insider said.

Skelos, the highest-ranking Republican in state government and one of the infamous “three men in a room” castigated by Bharara after Silver’s arrest, has not been charged with a crime.